Equisetum arvense powder
AKA “Horsetail
Synthetic
Ingredient Facts
Equisetum arvense powder
AKA: Horsetail
Synthetic · Astringent · EWG: 4
Plant-Derived Synthetic
Humectant
Astringent
Skin Conditioner
Synthetic
Clean
Horsetail powder naturally helps skin retain moisture. This plant-derived ingredient draws hydration into the skin for a smoother, more supple complexion.
CAS #
71011-23-9
Form
Powder
See origin →
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Astringent
Tightens and contracts skin tissue, temporarily shrinking pores and reducing oiliness. That "clean, tight" feeling after toner.
Locks In Moisture
Traditional Use
Powdered horsetail has been used in European traditional medicine for centuries, historically applied to skin and taken internally for joint and connective tissue support due to its high silica mineral content.
Skin Types
all-skin-types
Best For
Dullness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Caution
EWG
4
CIR
Insufficient
Pregnancy
Caution
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: Kew POWO · CosIng · EWG · CIR